EP 3452440 A4 20200115 - METHOD FOR PRODUCING AN ESTER
Title (en)
METHOD FOR PRODUCING AN ESTER
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES ESTER
Title (fr)
PROCÉDÉ DE PRODUCTION D'UN ESTER
Publication
Application
Priority
- SE 1630101 A 20160503
- SE 2017050398 W 20170424
Abstract (en)
[origin: WO2017192084A1] Disclosed is a method for production of an ester obtained from a reaction between at least one alcohol having at least one hydroxyl group, such as a diol, and at least one linear of branched C3-C20 monocarboxylic acid, said reaction being performed in presence of at least one azeotropic solvent and optionally at least one antioxidant. Said method comprises the steps of (a) charging said alcohol, said monocarboxylic acid, and said azeotropic solvent and optionally said antioxidant to a reactor, (b) subjecting said alcohol and said carboxylic acid to esterification under reflux, (c) removing azeotropic solvent and unreacted carboxylic acid from yielded reaction mixture, (d) steam stripping off residual unreacted carboxylic acid, (e) neutralising yielded reaction product with an aqueous base, (f) separating water and organic phases, (g) recovering said organic phase and evaporating residual water, and (h) filtering off said antioxidant and possible remaining salts in yielded reaction product. The method is preferably performed in at least one reactor equipped with reflux, at least one vacuum pump, evaporation/distillation, steam stripping and decantation, and at least one filtration unit and optionally at least one coalescer filtre.
IPC 8 full level
C07C 67/08 (2006.01); C07C 69/28 (2006.01)
CPC (source: EP SE US)
C07C 67/08 (2013.01 - EP SE US); C07C 69/28 (2013.01 - SE); C07C 69/30 (2013.01 - SE)
C-Set (source: EP)
Citation (search report)
- [A] JP S54132502 A 19791015 - NIPPON OILS & FATS CO LTD
- See references of WO 2017192084A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2017192084 A1 20171109; CN 109153631 A 20190104; CN 109153631 B 20220311; EP 3452440 A1 20190313; EP 3452440 A4 20200115; SE 1630101 A1 20171104; SE 540729 C2 20181023; US 10882814 B2 20210105; US 2020331838 A1 20201022
DOCDB simple family (application)
SE 2017050398 W 20170424; CN 201780030746 A 20170424; EP 17792949 A 20170424; SE 1630101 A 20160503; US 201716097662 A 20170424